A great deal of history has been made in the Archdiocese of Dubuque since its founding in 1837. The Archives Office has attempted to put together a day by day accounting of both the significant and everyday events that have shaped our story.
| Aug. 1, 1999 Sacred Heart, Volga celebrates centennial | The Witness | |
| Aug. 2, 1929: Death of Archbishop James John Keane. | The Witness | |
| Aug. 2, 1996: Death of Archbishop James J. Byrne | The Witness | |
| Feast of Cure of Ars, St. John Mary Vianney, secondary patron of the Archdiocese of Dubuque | The Witness | |
| Aug. 5. 2000: Immaculate Conception Parish (Blessing) celebrates 125th anniversary. Located 6 miles south of Hudson, on Highway 63. First Blessing church built in 1875. | The Witness | |
| Aug. 6, 1978: Death of Pope Paul VI (The Pilgrim Pope). | The Witness | |
| Aug. 8, 1853: James and Mary Daly gave 40 acres for land for St. Theresa’sChurch in Jackson County. | Centennial History of the Archdiocese of Dubuque (1937), p. 66 | |
| Aug. 10, 1898: St. Joseph’s, Independence. A parochial school, with spacious quarters for the Franciscan Sisters, was blessed by Fr. Geo. Heer. | Centennial History of the Archdiocese of Dubuque (1937), p. 336 | |
| Aug. 11, 1876: Cornerstone laid for St. Patrick’s in Cedar Falls. The Church was dedicated Nov. 5, 1876 by Bishop Hennessy. | Centennial History of the Archdiocese of Dubuque (1937), p. 148 | |
| Aug. 12, 1912: Fr. James Mulligan became pastor of St. Joseph’s, Key West. He built a parish hall to safeguard his boys and girls from the “contaminating influence of modern amusements.” | Centennial History of the Archdiocese of Dubuque (1937), p.233 | |
| Aug. 13. 1880: St. Joseph’s, Chelsea, was deeded to Bishop John Hennessy. A new church had been built because the arrival of the railroad left the old church too far out of town. | Centennial History of the Archdiocese of Dubuque (1937), p. 392 | |
| Aug. 14, 1851: A church bell, donated by Mr. Floeder, was sent from Cincinnati to Guttenberg. Undoubtedly the first pealing of a church bell in Clayton County. (St. Mary’s) | Centennial History of the Archdiocese of Dubuque (1937), p. 43 | |
| Aug. 14: Feast of St. Maximilian Kolbe, who refused a chance to escape the death camp. | The Witness | |
| Aug. 15, 1980: Centennial celebration of Sacred Heart, Dubuque. | The Witness | |
| Aug 15, 1835: Cornerstone laid for original St. Raphael’s Cathedral | The Witness | |
| Aug. 17, 1905: St. Mary’s, Hazleton, a remodeled church was dedicated. | Centennial History of the Archdiocese of Dubuque (1937), p. 440 | |
| Aug. 20, 1951: Bishop Loras T. Lane consecrated. | The Witness | |
| Aug. 21, 1994: St. Boniface, Garwin, celebrated its centennial. | The Witness | |
| Aug. 22, 1926: Death of Sister Cortona Gloden, OSF, first woman to receive a Bachelor of Arts Degree from Columbia (Loras) college. Author of a history of the Franciscan Order. | The Witness | |
| Aug. 24, 1915: Cornerstone laid for St. Patrick’s in Waukon. | Centennial History of the Archdiocese of Dubuque (1937), p.125 | |
| Aug.24, 2003: Newly constructed Newman Elementary School dedicated in Mason City, replacing St. Joseph’s School. | The Witness | |
| Aug. 25, 2002: St. Peter’s, Temple Hill, celebrates its 150th anniversary. | The Witness | |
| Aug. 26, 1857: Birth of Archbishop James J. Keane in Joliet, IL. | Driscoll, We pray for our priests, p. 5 | |
| Aug. 26, 1965: Loras J. Watters consecrated as Auxiliary Bishop of Dubuque | The Witness | |
| Aug. 27, 1895: Corner stone laid for St. Francis de Sales, Ossian. | Centennial History of the Archdiocese of Dubuque (1937), p. 228 | |
| Aug. 27. 1838: Relics of St. Cessianus (given to Bishop Loras by Pope Gregory XVI) presented to Bishop Loras as he left France to come to the U.S. | The Witness | |
| Aug. 29, 1908: Holy Rosary, Lamotte, opened a grade school with 96 children enrolled. | Centennial History of the Archdiocese of Dubuque (1937), p. 478 | |
| Aug. 29, 1971: St. Joseph’s Parish in Wadena celebrated its centennial. | The Witness | |
| Aug. 30, 1792: Birthday of Bishop Mathias Loras | The Witness | |
| Aug. 31, 1959: Wahlert Catholic Central High school opened. The school that 15 Dubuqueland parishes built | The Witness | |
| Aug. 31, 1840: St. Patrick’s, Garryowen, first 3 recorded baptisms bear the signature of Bishop Loras. | Centennial History of the Archdiocese of Dubuque (1937), p. 11 |